ICOM AP-3 Manuale Utente

Pagina di 90
GLOSSARY
18
81
10BASE-T and 100BASE-TX
10BASE-T and 100BASE-TX are connection
specifications for Ethernet configurations using
twisted pair cable.
The "10" in 10BASE-T represents an Ethernet
transmission speed of 10 Mbps and the "T" repre-
sents twisted pair cable. 
Category 5 twisted pair cable supports 100BASE-
TX as well as 10BASE-T.
Access point
An access point is any device used to connect a
wired LAN to a wireless LAN.
Client
A client is any terminal or application in a network
that requests information or a service from a serv-
er and receives the corresponding response.
Global IP address
A global address is a globally unique address that
held by only one device on the entire internet. 
Subnet mask
A subnet mask is used to allow on IP address rep-
resent both the network address and the host
address. 
Assuming the IP address of a certain host is
192.168.0.1 and the subnet mask is
255.255.255.0, if the IP address and subnet mask
are multiplied as binary numbers the network
address will be 192.168.0.0 and the remaining 1
will be the host address.
Traffic
Traffic refers to the flow of packets over a network
or the load (amount of data) born by the network
circuits. When the traffic is high, data transfers
may be delayed and data may be lost. 
Network
An arrangement wherein servers, work stations,
computers, and other devices are connected via
cable or a telephone circuit for the purpose of
exchanging data.
Packet
The unit by which data is send and received in a
network. A packet comprises a header portion con-
taining information required for sending and
receiving and a data portion containing the data
being sent.
Password
A character string that a user must enter in order
to access a network. The password provides net-
work security because, once established, the
password must be entered correctly by the user or
access will be denied.
Hub
A hub is required when the AP-3 and other devices
are used construct a network. 
The hub is connected to the AP-3 using 10BASE-
T or 100BASE-TX cable. 
In order to achieve transmission speeds of 100
Mbps, Category 5 twisted pair cable must be used
and the hub must support 100BASE-TX.
Flash memory
The flash memory is a memory device in the AP-3
to which data can be written. Information stored in
the flash memory is not erased when the power to
the unit is turned off.
Protocol
A protocol is a defined set of steps that is followed
when data is sent and received.